Liquid fuel stove with simultaneous



June 20, 1950 L. G. MCKENZIE ET AL 2,511,932

LIQUID FUEL STOVE WITH SIMULTANEOUS FUEL AND AIR coumor.

Filed May 9, 1947 2 Sheets-Sheet 1 4 70 4 I 70p I4 |lil lljlll |||||IIII| /l|||| Inventor Lewis G. McKenzie Arthur R. Kingsley 2A.. 406% Mp/W ma:

June 20, 1950 L. G. MCKENZIE El AL 2.5113932 LIQUID rum. STOVE wrm smuLTAuEous FUEL AND AIR comer.

Filed May 9, 1947 2 Sheets-Sheet 2 68 72 Fig. 4

I n uentor Lewis 6. Mc Kenzie Arthur R. Kingsley Patented June 29, 1950 LIQUID FUEL STOVE WITH'ISIMULTANEOUSr FUEL AND AIR CONTROL,

Lewis G.

McKenzieand'Arth'ur R'. Kingsley;.

Houghton Lake, Mich.

Application May 9, 1947, Serial'No'. 747,082

2 Claims.

This'invention relates to new-and useiulimprovemien-ts in liquid fuel stoves. and theprirnary object of the present invention-is to. provide a stove. including novel...and.. improved means. for

simultaneously controllingthe. air supply with" apropenamount'of "fuelisuplplied to the stove.

Another, important object/oi. the present invention is to provide a stove wherein are fitted a series of b'afiles so designed as to direct the heated'air in the stove towards an exhaust pipe in (a retarded manner thereby retaining. heat for long periods of time within the stove.

A further object of the present invention is to provide an inexpensive stove comprising novel and improved draft regulating mean so designed to permit the use of the stove with various heights of chimneys.

A still further purpose of the present invention is to provide a stove that is simple and practical in construction, efficient and reliable in use, relatively inexpensive to manufacture, and other- Wise well adapted for the purposes for which the same is intended.

Other objects and advantages reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming part hereof, wherein like numerals refer to like parts throughout, and in which:

Figure 1 is a side elevational view of the present invention, with parts of the exhaust pipe broken away;

Figure 2 is a side elevational View of Figure 1;

Figure 3 is a bottom plan view of Figure 1;

Figure 4 is a vertical sectional View taken on line 4'4 of Figure 2;

Figure 5 is a horizontal sectional view taken on line 5--5 of Figure 4; and,

Figure 6 is a, horizontal sectional view taken on line 65 of Figure 4.

Referring now to the drawings in detail, wherein for the purpose of illustration, there is disclosed a preferred embodiment of the present invention, the numeral It represents generally a cylindrica1 stove including an air chamber l2, a top I4, a bottom It and legs 18 car ried by the bottom for supporting the stove in an elevated position.

Suitably mounted on the bottom it and centrally located therein is an axial tubing 251 closed at its upper end by cap 22, on which is secured an upper bafile plate 25.

Embracing the lower portion of tubing 29, is a lower bafile plate 26 the outer edge of which is spaced from the inner wall of the stove.

2'. Spaced between ,1 the :bailie: plate 24: and. 26, .is an intermediate bafile plate 28, the outer edge of whichsissuitably secured-to theinner wall of thestovec This platen isprovided with .anrannular opening 38 that -surroundsthe. tubing 20.

An. upper series/oi circumierentiallyspaced slits 32-. are provided in tubing- 23 between baffle platesw24-r. and. 23.. Intermediate circumferentiallyspaced slits+ 3 t are provided :-in the tubing between plates iii-rand 26-; ,and..a.1ower series .of slits. 36. are also. provided-in the :tubingibeirveen plates 26 and the bottom I6. These slits furnish the necessary outlet means for the air heated in the tubing.

Mounted on the stove, near the bottom It, is a carburetor 38 which is connected to a fuel line 40 in a usual manner. A lead pipe 42 carried by the carburetor extends through an air and liquid seal 44 in bottom l6 and communicates with a liquid absorbent wick 46 embracing the lower end of tubing 20.

Mounted on the carburetor is a bearing sleeve 48 in which is journaled a shaft 50. A carburetor valve control rod 52 is journaled in a bracket 54 carried by the stove and a pinion 55 carried by said rod engages the upper pinion 58 carried by shaft 50. The lower pinion 60 carried by shaft 50 engages a gear 62 journally mounted to the bottom l6.

A series of openings 64 of various diameters, are provided in gear 62 for selective positioning under the lower open end of tubing 20.

In practical use of the stove, by turning the finger gripping knob 66 carried by rod 52, the carburetor valve and gear 62 are simultaneously regulated to control both the air and the fuel entering the stove.

When the wick is lighted by a flame from a match or the like, the heated air will pass around the lower baffle, through the opening in the intermediate baflle, around the upper baflle, and hence through the exhaust pipe 68 carried by the stove. The baliles retard the direct flow of the heated air in the stove thereby retaining the heat in the stove for long periods of time.

For additional draft control means for the stove, there is provided a plate 10 pivotally mounted on the cover M for regulated adjustment over opening 12 in the cover.

In view of the foregoing description taken in conjunction with the accompanying drawings it is believed that a clear understanding of the device will be quite apparent to those skilled in this art. A more detailed description is accordingly deemed unnecessary.

It is to be understood, however, that even though there is herein shown and described a preferred embodiment of the invention the same is susceptible to certain changes fully comprehended by the spirit of the invention as herein described and the scope of the appended claims.

Having described the invention, what is claimed as new is:

1. In a, stove having a bottom wall and an axial tubing therein, a liquid fuel line for supplying fuel to said stove, said bottom wall having an air ventcommunicating with said tubing, an annular plate pivoted at its center adjacent the center of said bottom wall, said plate including a plurality of circumferentialy spaced apertures of various diameters for selectively registering with the air vent, said fuel line including a carburetor and valve means for controlling the flow of fuel through the carburetor, a control rod for said carburetor, and gearing connecting said control rod to said plate for simultaneous proportional regulation of the air and fuel supply to the tubing.

2. In a stove having a bottom wall and an axial tubing therein, a liquid fuel line for supplying fuel to said stove, said bottom wall having an air vent communicating with said tubing, an annular plate pivoted at its center adjacent the center of said bottom wall, said plate including a plurality of circumferentially spaced apertures of various diameters for selectively registering with the air vent, said fuel line including a. carburetor and 4 valve means for controlling the carburetor, a control rod for said carburetor, and gearing connecting said control rod to said plate for simultaneous proportional regulation of the air and fuel supply to the tubing, said gearing including a bearing rigidly attached to said carburetor, a driven shaft rotatably supported in said bearing, gears connecting said control rod to said driven shaft, said plate having an externally toothed annular edge and a gear fixed on said driven shaft engaging the toothed edge of said plate.

LEWIS G. MCKENZIE. ARTHUR R. KINGSLEY.

REFERENCES CITED 

